Vue 获取当下日期时间及周几

<div>
    <p>{{nowWeek}}</p>
    <p><span>{{nowDate}}</span>{{nowTime}}</p>
</div>

data () {
  return {
    timer: null,
    nowWeek: '',
    nowDate: '',
    nowTime: ''
  }
}

mounted:
    mounted () {
        this.timer = setInterval(() => {
        this.setNowTimes()
    },1000)} 

methods:
    setNowTimes () {
        //获取当前时间
        let myDate = new Date()
        let wk = myDate.getDay()
        let yy = String(myDate.getFullYear())
        let mm = myDate.getMonth() + 1
        let dd = String(myDate.getDate() < 10 ? '0' + myDate.getDate() : myDate.getDate())
        let hou = String(myDate.getHours() < 10 ? '0' + myDate.getHours() : myDate.getHours())
        let min = String(myDate.getMinutes() < 10 ? '0' + myDate.getMinutes() : myDate.getMinutes())
        let sec = String(myDate.getSeconds() < 10 ? '0' + myDate.getSeconds() : myDate.getSeconds())
        let weeks = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']
        let week = weeks[wk]
        this.nowDate = yy + '-' + mm + '-' + dd
        this.nowTime = hou + ':' + min + ':' + sec
        this.nowWeek = week
      }